A low power, low THD current driver with discrete common-mode feedback for EIT applications
Conference paper
Li, J., Wu, Y., Bayford, R., Jiang, D. and Demosthenous, A. 2022. A low power, low THD current driver with discrete common-mode feedback for EIT applications . 29th IEEE International Conference on Electronics, Circuits and Systems. Glasgow, UK 24 - 26 Oct 2022 IEEE. https://doi.org/10.1109/ICECS202256217.2022.9971123
| Type | Conference paper |
|---|---|
| Title | A low power, low THD current driver with discrete common-mode feedback for EIT applications |
| Authors | Li, J., Wu, Y., Bayford, R., Jiang, D. and Demosthenous, A. |
| Abstract | A low THD sinusoidal current driver for electrical impedance tomography (EIT) applications is proposed and analyzed in this paper. A discrete common-mode feedback method is proposed to increase the accuracy of the output current amplitude and output impedance. The current driver is designed in 65 nm technology under 3.3 V supply with a chip area of 0.0843 mm2. The maximum output current amplitude is 1.2 mA. In simulations the current driver achieves an average THD of 0.098% at 1 mA output current amplitude and 500 kHz output current frequency. The simulated output impedance is higher than 4 MΩ at a load impedance lower than 3.5 kΩ. The current consumption of the circuit is 1.47 mA and provides a current efficiency of 81.6%. |
| Sustainable Development Goals | 3 Good health and well-being |
| Middlesex University Theme | Health & Wellbeing |
| Conference | 29th IEEE International Conference on Electronics, Circuits and Systems |
| Proceedings Title | 2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS) |
| ISBN | |
| Electronic | 9781665488235 |
| Paperback | 9781665488242 |
| Publisher | IEEE |
| Publication dates | |
| 24 Oct 2022 | |
| Online | 12 Dec 2022 |
| Publication process dates | |
| Accepted | 2022 |
| Deposited | 21 Jan 2025 |
| Output status | Published |
| Digital Object Identifier (DOI) | https://doi.org/10.1109/ICECS202256217.2022.9971123 |
| Web address (URL) of conference proceedings | https://doi.org/10.1109/ICECS202256217.2022 |
| Related Output | |
| Has version | https://discovery.ucl.ac.uk/id/eprint/10164296/ |
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